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• ICSE×
• Class 9×
• Mathematics×
• Expansions×

# Expansions Free Doubts and Solutions

## x-2=1/3x, find the value of (x²+1/9x²)

Asked by sparshmishra102 19th May 2019, 10:27 AM

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## if 1/1^2 + 1/3^2 + 1/5^2 + ............. =x^2/8 then find 1/1^2 + 1/2^2 +1/3^2 + 1/4^2+............

Asked by dev.sultanpur123 6th June 2015, 11:08 PM

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## 2x=3y-5,then find the value of 8xcube-27ycube-90xy+125

Asked by Vidhi Srivastava 14th May 2013, 8:04 PM

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## (X-2)(x+2)(xsquare+4)(x to the power of 4+16)

Asked by Vidhi Srivastava 14th May 2013, 7:21 PM

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## xsquare+ysquare=34andxy=21/2, find the value of 2(x+y)square+ (x-y)square

Asked by Vidhi Srivastava 17th April 2013, 9:01 PM

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## just as the description

Asked by Jayasree C 28th July 2012, 9:17 PM